Heater grill



FIG. 1 is a rear view of the heater grill according to my new design;

FIG. 2 is a front view of the heater grill of FIG. 1 ;

FIG. 3 is a perspective view of the heater grill of FIG. 1 ;

FIG. 4 is a left side view of the heater grill of FIG. 1 , the right side view being a mirror image thereof; and,

FIG. 5 is a top view of the heater grill of FIG. 1 , the bottom view being a mirror image thereof. 

CLAIM The ornamental design for a heater grill, as shown and described. 